Answer to Question #272286 in C# for chi

Question

Write a program which produces the given sequences numbers (in alternate arrangement and reverse order of the problem no. 2) using the three

looping statements: 5, 1, 4, 2, 3, 3, 2, 4, 1, 5,

1st Solution – using for loop

2nd Solution – using while loop

3rd Solution-­‐ using do while loop

Answer 1

internal class Program
    {
        static void Main(string[] args)
        {
            string array = GetReverseArrayUsingFor(("5, 1, 4, 2, 3").Split(',').ToArray());
            Console.WriteLine($"Use for: {array}");


            array = GetReverseArrayUsingWhile(("5, 1, 4, 2, 3").Split(',').ToArray());
            Console.WriteLine($"Use while: {array}");


            array = GetReverseArrayUsingDoWhile(("5, 1, 4, 2, 3").Split(',').ToArray());
            Console.WriteLine($"Use do while: {array}");


            Console.ReadKey();
        }
        static string GetReverseArrayUsingFor(string[] array)
        {
            string result = "";
            for (int i = array.Count()-1; i >= 0; i--)
            {
                result += array[i]+",";
            }
            return result;
        }
        static string GetReverseArrayUsingWhile(string[] array)
        {
            string result = "";
            int i = array.Count()-1;
            while (i>=0)
            {
                result += array[i] + ",";
                i--;
            }
            return result;
        }
        static string GetReverseArrayUsingDoWhile(string[] array)
        {
            string result = "";
            int i = array.Count() - 1;
            do
            {
                result += array[i] + ",";
                i--;
            } while (i>=0);
            return result;
        }
    }